The Full Plate Armour of Isildur [19,+15]
+1 to constitution. It increases resistances: +20% acid, +20% electricity,
+20% fire, +20% cold, +25% sound and +25% nexus. It provides protection
from the effects of confusion. It is vulnerable to damage by
disenchantment.
Level 30, Rarity 3, 30.0 lbs, 25000 Gold.

(EyAngband 0.5.2)